Home / 97,820.25-134,991.23-55,378.41

Finding the Fourth Proportional to 97,820.25, 134,991.23 and 55,378.41

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Solution

The fourth proportional to 97,820.25, 134,991.23 and 55,378.41 is: 76,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,820.25 : 134,991.23 = 55,378.41 : x
  2. Step 2: Convert to fraction form
    97,820.25/134,991.23 = 55,378.41/x
  3. Step 3: Cross multiply
    97,820.25x = 134,991.23 × 55,378.41
  4. Step 4: Simplify right side
    97,820.25x = 7,475,599,681.34
  5. Step 5: Solve for x
    x = 7,475,599,681.34/97,820.25
  6. Step 6: Final answer
    x = 76,421.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.